Expandable Panel Structures for Modular Construction
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Solution Overview
Problem
Conventional construction methods are slow, labor-intensive, and inefficient due to the need for on-site assembly of rectangular frames and attachment of studs, which are prone to weather and labor issues, and result in high material transportation costs and inefficiencies.
Innovation Solution
An expandable panel structure with a pattern of cuts, apertures, and grooves that allows the panel to transform from a flat to a stepped shape, enabling easy assembly and modular configuration, with spacers to maintain the expanded position and support sheathing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional rectangular frames and studs are assembled on-site, then structural integrity is achieved, but construction time and labor costs increase significantly
Solution Approach 1:
The wall structure is divided into multiple panel units that can be manufactured separately and then assembled. Each panel is a self-contained module with integrated framing and sheathing, allowing parallel manufacturing and simplified on-site assembly through interlocking edges and connector elements.
Solution Approach 2:
Panels are pre-assembled with frames and sheathing in a controlled manufacturing environment before delivery to the construction site. This preliminary assembly ensures precision, allows for quality control, and eliminates time-consuming on-site framing operations.
2Quantity of substance
If materials are transported to job site for conventional construction, then building components are available, but transport volume and number of trips increase
Solution Approach 1:
Panel components are nested or stacked in a compact configuration during transport. The flat-panel design allows multiple panels to be stacked vertically, maximizing vehicle cargo space utilization and reducing the number of transport trips required.
Solution Approach 2:
Multiple construction components (frame, sheathing, insulation, bracing) are merged into a single integrated panel unit. This consolidation reduces the total volume of separate materials that need to be transported and simplifies logistics by delivering complete wall sections in one operation.
3Reliability
If conventional on-site assembly is performed, then weather and labor issues affect construction, but prefabricated panels eliminate these vulnerabilities
Solution Approach 1:
All critical assembly operations are performed in advance in a controlled factory environment, eliminating exposure to weather conditions and unskilled labor issues. Panels are manufactured with precision equipment and quality control measures, ensuring consistent results regardless of external conditions.
Solution Approach 2:
The panel design incorporates self-aligning features and interlocking mechanisms that reduce the skill level required for on-site assembly. The modular construction allows workers to simply connect pre-assembled units without requiring complex framing skills or precise measurements.
Data Source
AI summary
An expandable panel includes a generally planar panel portion, penetrated by several pluralities of spaced parallel cuts. The cuts include aligned sets of apertures and aligned sets of transverse gaps. The panel is expandable by pulling the sides apart, separating the panel along the cuts. The positioning of the apertures and gaps causes the panel portions defined between the parallel cuts to bend apart, defining front and back planes, to which sheathing, surface panels, or “skins,” can be attached. The panel can be locked in its open position by inserting connectors in adjacent aligned gaps.